Unformatted text preview: K is required for a zero steady-state error? 4) A unity feedback system has the forward transfer function G ( s ) = K ( s + 2 ) s ( s + 3 )( s + 1 ) 2 The input r ( t ) = 1 + 3 t is applied to the system. a) It is desired that the steady-state error be equal to or less than 0.1 for the given input function. Determine the minimum value that K must have to satisfy this requirement. b) By use of Routh’s stability criterion, determine whether the system is stable for the minimum value of K determined in part a)....
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- Spring '08
- steady-state error, steady-state error ess, error constant Kv, error constant Ka